When exporting 3D model to BIMx with Global Ilumination activated, the process is so slow than is unusable.
We need multithreading core for this process so that time for that export process is reduced eight, ten or more times.
Real global illumination algorithm. BIMx is using very primitive ambient occlusion as GI, that is more mimic of GI. Everybody knows - BIMx ignores the light sources. So it's impossible to represent Interior Design properly in BIMx, because in many cases lighting in Interior is very important.